1997 TOYOTA SUPRA engine

11 3
TURN SIGNAL FLASHER
(4) 1-GROUND : CHANGES FROM APPROX. 12 VOLTS TO 0 VOLTS WITH THE IGNITION SW ON AND THE TURN SIGNAL
SW LEFT OR RIGHT, OR WITH THE HAZARD WARNING SW ON.
(4) 2-GROUND :12 VOLTS WITH THE IGNITION SW ON OR THE HAZARD SW ON
(4) 3-GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C10B28F 726 (2JZ-GE)J 129
C12A28F826 (2JZ-GTE)R 930
C1328F 826 (2JZ-GE)R1030
F 724 (2JZ-GTE)H1029
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
423R/B NO. 4 (LEFT KICK PANEL)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB136ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA32 (2JZ-GTE)FRONT SIDE OF RIGHT FENDEREA34 (2JZ-GE)FRONT SIDE OF RIGHT FENDER
EB32 (2JZ-GTE)FRONT SIDE OF LEFT FENDEREB34 (2JZ-GE)FRONT SIDE OF LEFT FENDER
IE36LEFT KICK PANEL
IH36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 232ENGINE ROOM WIREI 338INSTRUMENT PANEL WIRE
E1834ENGINE ROOM WIREB 440FLOOR NO. 2 WIRE
I 238COWL WIRE
SERVICE HINTS

11 7
B 1 (B), (C) BACK-UP LIGHT SW (M/T)
P 2 (A) BACK-UP LIGHT SW [PARK/NEUTRAL POSITION SW] (A/T)
(B), (C) 2-1, (A) 4-8 : CLOSED WITH THE SHIFT LEVER IN R POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B1B24 (2JZ-GTE)P2A25 (2JZ-GTE)R 930B 1C26 (2JZ-GE)P 2A27 (2JZ-GE)R1030
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
B 440FLOOR NO. 2 WIREB 640FLOOR NO. 2 WIRE
1212
X4
8X
4
5X
4
5 BGRAY B 1 C GRAYB 1 A GRAYP 2R 9 R10
SERVICE HINTS

120
INTERIOR LIGHT
INTERGRATION RELAY (J/B NO. 1)
1-GROUND : ALWAYS APPROX. 12 VOLTS
4-GROUND : CONTINUITY WITH THE RH DOOR OPEN OR THE LH DOOR OPEN
D10, D11 DOOR COURTESY SW LH, RH
1-2 : CLOSED WITH THE DOOR OPEN
L 5 LUGGAGE COMPARTMENT LIGHT SW
1-GROUND : CLOSED WITH THE LUGGAGE COMPARTMENT DOOR OPEN
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
D 728I1829P 630
D1030L 430T 629
D1130L 530
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1D20FRONT DOOR LH WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1F20ROOF WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1I20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
IE136INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
IG36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I1138COWL WIREB 640FLOOR NO. 2 WIRE
SERVICE HINTS

124
ILLUMINATION
TAILLIGHT RELAY
5-3 : CLOSED WITH THE LIGHT CONTROL SW AT TAIL OR HEAD POSITION
C13 LIGHT CONTROL SW [COMB. SW]
2-1 1 : CLOSED WITH THE LIGHT CONTROL SW AT TAIL OR HEAD POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A2928H1029R 629
C 728H1229R 829
C1028I2029S 629
C1328J 129T 629
E 829O 529T 829
G 329R 4A29
G 429R 5B29
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1I
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
()
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
IH138INSTRUMENT PANEL AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL BRACE RH)IH238INSTRUMENT PANEL AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL BRACE RH)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
IH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 438COWL WIREI1438INSTRUMENT PANEL WIREI1038COWL WIREI1938INSTRUMENT PANEL WIRE
I1238INSTRUMENT PANEL WIRE
SERVICE HINTS

127
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 18 OF THE FRONT WIPER AND WASHER SW,
TERMINAL 2 OF THE WASHER MOTOR AND TERMINAL 6 OF THE FRONT WIPER MOTOR FROM THE WIPER FUSE.
1. LOW SPEED POSITION
WITH THE WIPER SW TURNED TO LOW POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE FRONT WIPER AND
WASHER SW TO TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND AND CAUSES THE
WIPER MOTOR TO RUN AT LOW SPEED.
2. HIGH SPEED POSITION
WITH THE WIPER SW TURNED TO HIGH POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE FRONT WIPER AND
WASHER SW "TERMINAL 13 " TERMINAL 2 OF THE FRONT WIPER MOTOR" TERMINAL 1 " TO GROUND AND CAUSES TO THE
WIPER MOTOR TO RUN AT HIGH SPEED.
3. INT POSITION
WITH THE WIPER SW TURNED TO INT POSITION, THE RELAY OPERATES AND THE CURRENT WHICH IS CONNECTED BY RELAY
FUNCTION FLOWS FROM THE TERMINAL 18 OF THE FRONT WIPER AND WASHER SW" TERMINAL 16" TO GROUND. THIS
FLOWS OF THE CURRENT OPERATES THE INTERMITTENT CIRCUIT AND THE CURRENT FLOWS FROM TERMINAL 18 OF THE
FRONT WIPER AND WASHER SW " TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND
AND FUNCTIONS.
THE INTERMITTENT OPERATION IS CONTROLLED BY A CONDENSER'S CHARGED AND DISCHARGED FUNCTION INSTALLED IN
RELAY AND INTERMITTENT TIME IS CONTROLLED BY A TIME CONTROL SW TO CHARGE THE CHARGING TIME OF THE
CONDENSER.
4. MIST POSITION
WITH THE WIPER SW TURNED TO MIST POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE FRONT WIPER AND
WASHER SW "TERMINAL 7 "TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 "TO GROUND AND CAUSES THE
WIPER MOTOR TO RUN AT LOW SPEED.
5. WASHER CONTINUOUS OPERATION
WITH THE WASHER SW TURNED TO ON, THE CURRENT FLOWS THROUGH TERMINAL 2 OF THE WASHER MOTOR "TERMINAL
1" TERMINAL 8 OF THE FRONT WIPER AND WASHER SW " TERMINAL 16 " TO GROUND AND CAUSES TO THE WASHER MOTOR
TO RUN, AND WINDOW WASHER IS JET. THIS CAUSES THE CURRENT TO FLOW WASHER CONTINUOUS OPERATION CIRCUIT IN
TERMINAL 18 OF THE FRONT WIPER AND WASHER SW " TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR" TERMINAL
1 " TO GROUND AND FUNCTION.
C14 FRONT WIPER AND WASHER SW [COMB. SW]
16-GROUND : ALWAYS CONTINUITY
18-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
7-GROUND : APPROX. 12 VOLTS WITH THE WIPER AND WASHER SW AT LOW POSITION
: APPROX. 12 VOLTS EVERY APPROX. 1 TO 10 SECONDS INTERMITTENTLY WITH THE WIPER SW AT INT POSITION
4-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW ON UNLESS THE WIPER MOTOR AT STOP POSITION
13-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW ON AND THE WIPER AND WASHER SW AT HIGH POSITION
F 9 FRONT WIPER MOTOR
5-6 : CLOSED UNLESS WIPER MOTOR AT STOP POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1428F 926 (2JZ-GE)W 227 (2JZ-GTE)
F 924 (2JZ-GTE)W 125 (2JZ-GTE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
SYSTEM OUTLINE
SERVICE HINTS

128
FRONT WIPER AND WASHER
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EB32 (2JZ-GTE)FRONT SIDE OF LEFT FENDEREB34 (2JZ-GE)FRONT SIDE OF LEFT FENDER
IE36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 932ENGINE ROOM MAIN WIREE2134ENGINE ROOM MAIN WIRE

129
HORN
13 22
2 2
61 1 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
W L- R L- R L- R
215A
HAZ- HORN
HORN
RELAY
HORN SW
[COMB. SW] C13H 8 H 9
HORN LH HORN RH 1
IB2 16
L- R
L- B L- B
L- B E 2 : 2JZ- GTE
E18 : 2JZ- GE
2
I 2
TO THEFT
DETERRENT ANDDOOR LOCK
CONTROL ECU
HORN RELAY
(2) 2- (2) 3 : CLOSED WITH THE HORN SW ON
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1328H 827 (2JZ-GE)H 927 (2JZ-GE)
H 824 (2JZ-GTE)H 924 (2JZ-GTE)
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 232ENGINE ROOM MAIN WIREI 238COWL WIRE
E1834ENGINE ROOM MAIN WIRE
SERVICE HINTS

7. 5A
DOME
2
IF2 3IF39
IE1 8 IE1 4 IF3 4 IC2 15 IB64
BI IG EA BJ 2 3
2 3
2 1
2 11DSWL LUG DSWH DSWP DSWD+B1 AC C IGFROM POWER SOURCE SYSTEM (
SEE PAGE 56)
R RB- R
L- R
LGLGR R- LR- B
GR R- B
LGL GR R- L R- B W- B
W- B
W- B
W- B
1
2
THEFT DETE RRENT AND DOO R LOCK CONTROL ECU
L 5 L 3
LUGGAGE
COMPARTM
LIGHT SW LUGGAGE
COMPARTMENT
KEY UNLOCK SW A 7A8B1A9IF1 13
A 6
IF3 12
IE B 4 B 9 B 14 B 19 B 7PR LY +B2
Y Y W- B
L
LL- W L- W
B T 7 , T1 3A
E 6 D11 D10
ENGINE HOOD
COURTESY SW DOOR COURTE SY
SW RH DOOR COURTESY
SW LH
1E 111B 5
10A
ECU- IG15A
CIG
1E 17 1E230A
D OOR
1H 152 1
ENT1I 7
1J 11D91J2
POWER MAIN
RELAY23 15
132
THEFT DETERRENT AND DOOR LOCK CONTROL